SYNTHESIS OF NEW IMIDAZO[3,4-D][1,3,4] THIADI(AND DITHI)-AZINES INVOLVING CHEMOSELECTIVE HETEROCYCLIZATIONS

Authors
YADAV LDS VAISH A SHARMA S
Citation
Lds. Yadav et al., SYNTHESIS OF NEW IMIDAZO[3,4-D][1,3,4] THIADI(AND DITHI)-AZINES INVOLVING CHEMOSELECTIVE HETEROCYCLIZATIONS, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 32(8), 1993, pp. 882-885
Citations number
7
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry → ACNP
ISSN journal
03764699
Volume
32
Issue
8
Year of publication
1993
Pages
882 - 885
Database
ISI
SICI code
0376-4699(1993)32:8<882:SONITD>2.0.ZU;2-3
Abstract
The dithiocarbamates (IV), obtained by a Michael addition of N-aryldit hiocarbamic acids (III) to 3-aryl-5-benzylidene-2-thiohydantoins (II), undergo intramolecular heterocyclizations with SOCl2 to yield 1,4,7-t riarylperhydro-3,6-dithioxoimidazo[3,4-d] [1,3,4] thiadiazin-8-ones (V ) and with iodine to yield -diaryl-3-aryliminoperhydro-6-thioxoimidazo [3,4-d] [1,3,4] dithiazin-8-ones (VI). The compounds V and VI on dethi o-oxygenation furnish the triones (VII) and diones (VIII).